private T GetWindowInfoValue <T>(IntPtr handle, Func <WindowInfo, T> selector)
{
var info = WindowInfo.Create();
if (User32Api.GetWindowInfo(handle, ref info))
{
return(selector(info));
}
return(default);
/// <summary>
/// Get the WindowInfo
/// </summary>
/// <param name="interopWindow">InteropWindow</param>
/// <param name="forceUpdate">set to true to make sure the value is updated</param>
/// <returns>WindowInfo</returns>
public static WindowInfo GetInfo(this IInteropWindow interopWindow, bool forceUpdate = false)
{
if (interopWindow.Info.HasValue && !forceUpdate)
{
return(interopWindow.Info.Value);
}
var windowInfo = WindowInfo.Create();
User32Api.GetWindowInfo(interopWindow.Handle, ref windowInfo);
// Now correct the bounds, for Windows 10
if (Dwm.IsDwmEnabled)
{
NativeRect extendedFrameBounds;
bool gotFrameBounds = Dwm.GetExtendedFrameBounds(interopWindow.Handle, out extendedFrameBounds);
if (gotFrameBounds && (interopWindow.IsApp() || WindowsVersion.IsWindows10OrLater && !interopWindow.IsMaximized()))
{
windowInfo.Bounds = extendedFrameBounds;
}
}
interopWindow.Info = windowInfo;
return(interopWindow.Info.Value);
}
/// <summary>
/// Get the WindowInfo
/// </summary>
/// <param name="interopWindow">InteropWindow</param>
/// <param name="forceUpdate">set to true to make sure the value is updated</param>
/// <param name="autoCorrect">enable auto correction, e,g, have the bounds cropped to the parent(s)</param>
/// <returns>WindowInfo</returns>
public static WindowInfo GetInfo(this IInteropWindow interopWindow, bool forceUpdate = false, bool autoCorrect = true)
{
if (interopWindow.Info.HasValue && !forceUpdate)
{
return(interopWindow.Info.Value);
}
var windowInfo = WindowInfo.Create();
User32Api.GetWindowInfo(interopWindow.Handle, ref windowInfo);
// Test if we need to correct some values
if (autoCorrect)
{
// Correct the bounds, for Windows 8+
if (Dwm.IsDwmEnabled)
{
// This only works for top level windows, otherwise a access denied is returned
bool gotFrameBounds = Dwm.GetExtendedFrameBounds(interopWindow.Handle, out var extendedFrameBounds);
if (gotFrameBounds && (interopWindow.IsApp() || WindowsVersion.IsWindows10OrLater && !interopWindow.IsMaximized()))
{
windowInfo.Bounds = extendedFrameBounds;
}
}
var parentWindow = interopWindow.GetParentWindow();
if (interopWindow.HasParent)
{
var parentInfo = parentWindow.GetInfo(forceUpdate, true);
windowInfo.Bounds = windowInfo.Bounds.Intersect(parentInfo.Bounds);
windowInfo.ClientBounds = windowInfo.ClientBounds.Intersect(parentInfo.ClientBounds);
}
}
interopWindow.Info = windowInfo;
return(windowInfo);
}
